Beechcraft King Air 90 vs Piper M600

The Piper M600 (single-engine turboprop, ~274 kt, Garmin G3000) and Beechcraft King Air 90 (twin-engine turboprop, ~250 kt) are different-propulsion turboprops — single vs twin.

Live Market Snapshot

Current asking-price market, aggregated across multiple marketplaces · refreshed daily

Beechcraft King Air 90
For sale now
116
Median asking
$1,172,500
Range
$413,000–$3,117,025
Listed on 2+ marketplaces
50
Source marketplaces
15
Model years available
1965–2014
Piper M600
For sale now
27
Median asking
$2,939,000
Range
$2,339,500–$3,832,056
Listed on 2+ marketplaces
15
Source marketplaces
7
Model years available
2016–2026

Live data from AeroGurus, aggregated daily across the used-aircraft market. Figures are current asking prices, not appraisals — confirm with a pre-buy inspection.

Full Specs Comparison

Swipe to see all specs
Spec / Model Beechcraft King Air 90 Piper M600
Beechcraft King Air 90
View 108 listings →
Median $1,172,500
 Piper M600
View 27 listings →
Median $2,939,000
Price Range $413,000 – $3,117,025 $2,339,500 – $3,832,056
Category Multi Engine Turboprop Single Engine Turboprop
Model Specifications
Seats 10 6
Cruise Speed 215 kts (398 km/h) 260 kts (482 km/h)
Range 1,060 nm (1,963 km) 1,484 nm (2,748 km)
Service Ceiling — 30,000 ft (9,144 m)
Max Gross Weight — 6,000 lbs (2,722 kg)
Useful Load 2,700 lbs (1,225 kg) 1,822 lbs (826 kg)
Fuel Capacity — 260.0 gal (984 L)
Fuel Burn — 40.0 GPH (151 L/h)
TBO 3,600 hrs 3,500 hrs
Overhaul Cost — $350,000
Annual Fixed — $120,000
Hourly Variable — $750
Engines 2 x Turboprop 1 x Turboprop

Cost of Ownership

Estimate

Beechcraft King Air 90

Piper M600

Fuel$220/hr
Variable$750/hr
Annual Fixed$120,000/yr
Total (200 hrs/yr) $270,000/yr

Which Should You Buy: Beechcraft King Air 90 or Piper M600?

Bottom line: Choose the M600 for the modern Garmin G3000 cockpit, single-engine economics and higher cruise. Step up to the King Air 90 only when twin-engine redundancy and the larger King Air cabin matter more than the M600's efficiency and modern systems.

Pick the King Air 90 if…

  • Budget matters — from $413,000 vs $2,339,500, you save ~$1,926,500.
  • More seats — 10 vs 6.
  • More inventory — 108 listings vs 27.

Pick the M600 if…

  • Faster cruise — 260 kts vs 215 kts.
  • Longer range — 1484 nm vs 1060 nm.
  • Newer design — production from 2016 vs 1966.

Auto-generated from current market data and published specs. Confirm with a pre-buy inspection and professional appraisal.

Frequently Asked Questions

Which is better, Beechcraft King Air 90 or Piper M600?
It depends on your mission and budget. The King Air 90 cruises at 215 kts with 1,060 nm range. The M600 cruises at 260 kts with 1,484 nm range. Review the specs table above to find which fits your flying profile.
How do prices compare?
Beechcraft King Air 90: from $459,000. Prices vary by year, hours, avionics, and condition. Always get a pre-buy inspection.
What's the difference between Beechcraft King Air 90 and Piper M600?
King Air 90 engine: Pratt & Whitney PT6A-6. Seats: 10 vs 6. Cruise: 215 vs 260 kts. Range: 1060 vs 1484 nm.
Which is cheaper to operate per hour?
M600: about $750/hr variable cost. Variable cost includes fuel, reserves and overhaul accruals. Annual fixed costs (hangar, insurance, annual inspection) add to the total.
Which has more seats and useful load?
King Air 90: 10 seats / 2,700 lb useful load. M600: 6 seats / 1,822 lb useful load. Useful load = max gross weight minus empty weight; it determines how much fuel plus payload you can carry.
How does maintenance compare — TBO and overhaul cost?
King Air 90: 3,600-hour TBO. M600: 3,500-hour TBO, overhaul ~$350,000. Reaching the time-between-overhaul (TBO) triggers a mandatory engine/airframe rebuild that affects resale value.
Disclaimer: All prices and cost estimates are from third-party sources for informational purposes only. Always obtain professional appraisal and inspection before purchase.
Prices updated daily · Data: FAA Registry, NTSB · About our data